Window-sash lock.



B. J. JAGOWAY.

WINDOW SASH LOCK.

APPLICATION FILED MAR.1, 1912.

1,046,301 Patented Dec. 3.1912.

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BENJAMIN J. JAGOWAY, OF MEMPHIS, TENNESSEE.

WINDOW-SASH LOCK.

Speccaton of Letters Patent.

Patented Dec. 3, 1912.

Application filed March 1, 1912. Serial No. 680,793.

T0 all whom t may concern Be it known that l, BENJAMiN J JACO- wAY, a citizen of the United States, residing at Memphis, in the county of Shelby and State of Tennessee, have invented new and useful Improvements in l/Vindow Sash Locks, of which the following is a specification.

The invention relates to locks, and more particularly to the class of window sash locks. y rlhe primary object of the inventio-n is the pro-vision of a lock in which either the upper or lower sashes of a windo-w may be adjusted independently of each other, and sustained in said adjusted position without the possibility of the unlocking thereof from the outside of the window, thereby avoiding the gaining of access to the interior of an inclosure thro-ugh the window from the outside.

Another object of the invention is the provision of a lock of this character in which catches for locking both the upper and lower sashes of a window will cooperate with each other so as to sustain the said sashes in adjusted locked positions, the catches being independently or simultaneously operated at the option of a person, so that one sash may be raised or lowered without disturbing the other sash, or on the moving of one sash the other sash will be simultaneously moved therewith, the lock being so mounted upon one of the sashes to avoid manipulation thereof from the outside of the window thereby assuring safety when the window sashes have been partially raised for ventilating purposes, from intrusion of unscrupulous persons through the window to the interior of an inclosure.

A further object of the invention is the provision of a lock of this character in which the catches for sustaining the window sashes in locked adjusted position relative'to each other will be controlled by a supplementary locking means, so thatthe same can not be manipulated without operating the said means thereby increasing safety when using the lock from being manipulated from the out-side of the window, thus, it being seen that when the sashes are in closed locked position it is practically impossible to free the same from the outside of the window for the opening of the said sashes.

A further object of the invention is the provision of a lock of this character in which varyingdegrees of adjustment of the sashes may be obtained, and that will in a ready and convenient manner sustain the sashes locked without the possibility of the opening thereof from the outside of the window.

A still further object of the invention is the provision of a lock of this character which is simple in construction, capable of being mounted upon window sashes of varying styles for the locking thereof in adjusted position or when entirely closed, the lock being thoroughly reliable and efhcient in purpose and also that can be manufactured at a minimum cost.

lith these and other objects in view, the invention consists in the construction, combination and arrangement of parts as will be hereinafter more fully described, illustrated in the accompanying drawing, and pointed out in the claims hereunto appended.

In the drawings: Figure 1 is a front elevation of a window and its sashes showing a lock constructed in accordance with the invention applied thereto. Fig. 2 is an enlarged fragmentary, vertical, longitudinal, sectional view through the upper and lower sashes of the window and the lock showing the latter in position for fastening the said sashes closed. Fig. 3 is a transverse, sectional view through the lock. Fig. 4 is a similar view showing one of the catches removed. Fig. 5 is a perspective view of the lock casing with the parts removed. Fig. 6 is a perspective view of the removable cover plate for the casing. Fig. 7 is a perspective view of the catches shown separated. Fig. S is a perspective view of the locking device for the catches. Fig. 9 is a perspective view of the spacer plate interposed between the catch of the lock. Fig. 10 is a perspective view of the removable cover plate for the lock casing.

Similar reference characters indicate corresponding parts throughout the several views in the drawing.

Referring to the drawings by numerals 5 designates a window frame or easement of any ordinary well-known form, having arranged therein as usual slidable upper and lower sashes 6 and 7 respectively. Mounted upon the upper sash 6 at the inner face of one side stile thereof is a vertically arranged strip S preferably made from metal, in which are mounted spaced outwardly proj ecting headed studs 9, which may be formed integral with the strip or the same may be in the nature of screw members, and with any one of which is adapted to engage locking mechanism presently described.

rIhe locking mechanism comprises a lock casing 10 which is adapted to be mounted in properposition and in any suitable manner upon the top surface of the meeting rail of the lower sash 7 in alineinent with the strip 8 carried by the upper sash 6 and within this casing is arranged a swinging plate 11 which is connected by means of a pivot 12 to the bottom of the said casing 10, the free end portion of the plate 11 being formed with opposed tip-turned flanges 13 to form a carrier at the free end portion of said plate for receiving independently slidable latches or catches 14 and 15 respectively which are held spaced apart by means of a spacing plate 16 interposed there-between, the said plate 16 being swingingly connected to the pivot 12 so as to areuately move in unison with the plate 11 which causes the lateral shifting of the catches or latches for a purpose presently described.

Formed on the outer ends of the latches or catches 14 and 15 are outturned tongues or lips 17 the same being formed with reversely beveled edges 1S and are adapted to protrude into the path of or in contacting relation to the headed studs 9, the beveled edges 18 of said tongues or lips 17 being designed to frictionally ride over the headed studs 9 for laterally moving the latches or catches 14 and 15 when the same are disengaged from any one of the headed studs 9, thereby permitting the free movements of the upper and lower sashes when opening or closing the same in the window frame or easement. Thus, it will be seen that the said latches or catches 14 and 15 will be moved laterally out of the path of the headed studs 9, so as not to engage therewith and thereby interfere with the opening or closing of the sashes.

Formed in the tongues or lips 17 medially thereof and extending into the catches or latches 14 and 15 are apertures 19 which are adapted to receive the head of any one of the stud members 9 when either one of the said catches or latches 14 or 15 or both of the same are projected into engaging relation with respect to the headed studs 9, so that both of the sashes 6 and 7 will be locked either in closed or adjusted position.

Suitably connected with one side wall of the casing 10 interiorly thereof is a leaf spring 20, which has its free end working against the up-turned flange 18 adjacent thereto of the plate 11, the spring 20 being designed to normally hold the latches or catches 14 and 15 in alinement with and in working relation to the headed studs 9 projecting from the strip 8 on the upper sash, so that the tongues or lips 17 may be brought into locking engagement with any one of the studs 9 for the locking of the sashes against movement.

Formed on and projecting laterally from the inner ends of the latches or catches 14 and 15 are perforated ears 21 to which are connected pull cords 22 whereby either one of the saidrlatches or catches may loe retracted at will. It is of course obvious that when these cords 22 are simultaneously pulled upon it will retract the latches or catches 14 and 15 together. It is to beunderstood that in lieu of the pull cords 22 any other suitable mediums or medium or eontrivanee may be substituted for effecting the retracting of the latches or catches within the easing of the lock.

The lock easing 10 is closed at its top and at one end thereof by means of a removable plate or cover 23, the same being fastened to the casing in any approved manner, whereby it may be removed to give access to the parts of the locking mechanism located within the casing.

superimposed upon the catch or latch 14 and swingingly connected to the pivot 12 is a locking plate 24 the same being formed at one side edge with a holding nib 25 which is bent downwardly at right angles to the plate 24 and is adapted to engage in regisV- tering notches 26 formed in the side edges of the latches or catches 14 and 15 to lock the same against retracting movement when projected from the lock casing, the upturned flanges 13 of the plate 11 being cut away to accommodate the locking nib 25 and also a finger extension 2S formed on the said plate 24 and projecting laterally from the opposite edge of the same, the finger extension 28 being extended through a suitable slot 29 in one side of the lock casing 10 to the exterior thereof, whereby it may be manually engaged for displacing the lock plate 24 to free the nib 25 from engagement with the latches or catches 14 and 15 so that the same may become retracted on pulling upon the cords 22 connected therewith.

The catches or latches 14 and 15 are acted upon by the limbs 30 of a compression spring 31 stationarily mounted upon a stud 32 rising from the bottom of the lock easing 10 and by this spring the said latches or catches 14 and 15 are normally sustained projected from the lock casing, whereby the tongues or lips 17 will be disposed in the path of the studs 9 for locking engagement with any one of the same.

lt will be seen that when any one of the stud members 9 is engaged in the apertures 19 in the lips or tongues 17 on the catches the upper and lower window sashes will be held from being openedand on disengaging the lock mechanism from any one of the stud members 9 the sashes may be freely moved for the opening or closing of the window. It is clearly evident that the sashes may be locked in any adjusted position Without the possibility of the releasing thereo-f from the outside of the Window.

What is claimed is 1. A locking device comprising a strip adapted to be mounted on one sash of a Window and having studs projecting therefrom at intervals, a double latch locking mechanism adapted to be mounted on the other sash of said Window for the engagement of either of the latches With any one of the studs for holding such sashes locked, and means on the latches for causing lateral displacement thereof when striking the studs for the free movement of the sashes When the latches have been disengaged from any one of said studs.

2. A locking device comprising a strip adapted to be mounted on one sash of a Window and havingstuds projecting therefrom at intervals, a double latch locking mechanism adapted to be mounted on the other sash of said Window for the engagement of either of the latches with any one of the studs for holding such sashes locked, meansy on the latches for causing lateral displacement thereof When striking the studs for the free movements of the sashes When the latches have been disengaged from any one of said studs, means for retracting the latches, and means for preventing the retracting of the latches When engaging any one of the studs.

8. A locking device comprising a strip adapted to be mounted on one sash of a Window and having studs projecting therefrom at intervals, a double latch locking mechanism adapted to be mounted on the other sash of said Window for the engagement of either of the latches With any one of the studs for holding such sashes locked, means on the latches for causing lateral displacement thereof When striking the studs for the free movements of the sashes When the latches have been disengaged from any one of said studs, means for retracting the latches, means for preventing the retracting of the latches When engaging any one of the studs, and resilient means holding the latches in alinement and in normal locking position.

4. A locking device comprising a strip adapted to be ymounted on one sash of a Window and having studs projecting therefrom at intervals, a double latch locking mechanism adapted to be mounted on the other sash of said Window for the engagement of either of the latches With any one of the studs for holding such sashes locked, means on the latches for causing lateral displacement thereof When striking the studs for the free movements of the sashes When the latches have been disengaged from any one of said studs, means for retracting the latches, means for preventing the retracting of the latches when engaging any one of the studs, resilient means holding the latches in alinement and in normal locking position, and means engaging the latches to permit lateral movement of the same in unison.

In testimony whereof I aftlX my signature in presence of tvvo Witnesses.

f BENJAMIN J. JACOWAY. Witnesses:

E. EDMoNs'roN, Jr.,

FRANK O. PARKER.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents. Washington, D. C. 

